OFFSET
0,1
COMMENTS
For n > 3, a(n) satisfies (R(a(n)) - 1)/(a(n) + 1) = 8, where R(x) = A004086(x) is decimal digit reversal.
LINKS
FORMULA
a(n) = 11*a(n-1) - 10*a(n-2) for n > 1.
O.g.f.: 9*(2126 - 8915*x)/((1 - x)*(1 - 10*x)).
E.g.f.: 3*exp(x)*(2263 + 4115*exp(9*x)).
MATHEMATICA
LinearRecurrence[{11, -10}, {19134, 130239}, 20]
CROSSREFS
KEYWORD
nonn,base,easy
AUTHOR
Stefano Spezia, Nov 25 2023
STATUS
approved